<div class="title-input">
    <div class="input-group">
        <input class="form-control" [(ngModel)]="title" name="title" placeholder="标题" required>
        <span class="input-group-btn">
                <button class="btn btn-info" (click)="onSave()"><i class="glyphicon glyphicon-saved"></i> 保存</button>
            </span>
    </div>
</div>
<textarea #simplemde></textarea>